Unit 4 Answer key
Level 3
1 2 have been reading 3 2 c
& &
3 has seen 3 a
4 have you known 4 c
5 haven't had 5 b
6 Have you decided 6 c
7 've been trying 7 a
8 have you been doing? 8 b
9 hasn't visited
4 2 should
&
2 [suggested answers] 3 ought
&
2 She has been watching a sad ®lm. 4 better
3 They have been eating chocolate. 5 should
4 He has been swimming.
5 He has been ®ghting.
6 She has been working on the car.
7 He has been cutting onions.
# Cambridge University Press 2005 Level 3 Unit 4
LEVEL 3 UNIT 4
GRAMMAR PRACTICE